PCI Subsystem Rework for X.org 7.1 Proposal

[David S. Miller]

From: Alan Coopersmith <Alan.Coopersmith at Sun.COM>
Date: Fri, 03 Feb 2006 20:49:55 -0800

> For SPARCs, UPA (found in UltraSPARC machines ranging from the Ultra 1
> in 1995 to the SunBlade 2000 in 2002) is probably slightly more interesting
> than sbus (found in SPARC & UltraSPARC machines from the SPARC 1 in 1988
> to the Ultra 2 in 1996).   The suncg6 driver would be sbus, sunffb UPA.

We use the SBUS framework under Linux for the sunffb and suncg6 X.org
drivers, the X server really doesn't need to know the distinction.  We
use the same mmap() offsets as Sun does, and it's just "open some
device file and mmap() at known offsets" plus some machinery to get
the OBP firmware properties.

I would very much classify this as handled already.